Fermi 1D quantum gas: Luttinger liquid approach and spin-charge separation

Details Fermi 1D quantum gas: Luttinger liquid approach and spin-charge separation Fermi 1D quantum gas: Luttinger liquid approach and spin-charge separation

2002-12-09

arxiv.org/abs/cond-mat/0212195v1

Journal of Optics B: Quantum and Semiclassical Optics {\bf 5}, S55 (2003)

Physics

Condensed Matter

Strongly Correlated Electrons

12 pages, 5 figures. Accepted in Journal of Optics B: Quantum and Semiclassical Optics as a Special issue article

Scientific paper

We discuss the properties of quasi-1D quantum gases of fermionic atoms using the Luttinger liquid theory, including the presence of an optical lattice and of a longitudinal trapping potential. We analyze in particular the nature and manifestations of spin-charge separation, where in the case of atoms ``spin'' and ``charge'' refers to two internal atomic states and the atomic mass density, respectively.

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